Ash-sifter



(No Model.) 3 Sheets-Shet 2.

B. H. 000K. ASH SIFTER.

No. 464,1 83. Patented Dec. '1 1391.

FIG. 5.

INV NTOR: WITNESSES-z iwmg gw JM w 1 By his At zomeys,

ms Noam warns cm, mom-a m wnsnmewn, n. c.v

(No Model.)

3 Sheets-Sheet 3. B. H'. 000K.

' ASH SIFTER. No 464,133. Patented Dec. 1.,1'891.

FIG. 9.

FIG. 11.

,INVENTOR:

By his Attorneys,

WITNESSES momma, WASHINGTON, n. c.

UNITED STATES PATENT OFFICE.

BURTON II. COOK, OF BROOKLYN, NEW YORK.

ASH-SIFTER.

SPECIFICATION forming part of Letters Patent No. 464,183, dated December 1,1891.

Application filed June 27,1891. $eria1No. 397,677. (No model.) i

To all ZUhOTIb it may concern;

Be it known that I, BURTON H. COOK, a citizen of the United States, residinginBrooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Ash-sifters, of which the following is a specification.

This invention relates to ash-sitters designed to be placed over an ash receptacle and into which cinders or coal may be placed to be screened, the screened coals being delivered from a chute, while the ashes and dust fall through the screen into the ash-receptacle.

My invention relates in .part to improvements upon the rotary sifter patented by me January 21, 1890, No. 419,751.

The principal features of my invention relate to the construction of a sheet-metal oas ing for the rotary screen. Figure 1 is a perspective view of my improved ash-sitter. Fig. 2 is a vertical longitudinal mid-section thereof. Fig. 3 is a transverse section thereof on the line 3 3 in Fig. 2. Fig. 4 is a transverse section thereof on the line 44: in Fig. 2. Fig. 5 is a bottom view thereof. Figs. 6 to 13, inclusive, are plan views of the several sheet-metal blanks of which the casing of the sifter is constructed. Fig. 14 is a fragmentary longitudinal section and end view of the partsl and m united. Fig. 15 is a fragmentary horizontal section of the front end of the casing on the line 15 15in Fig, 2.

My improved sifter consists of a sheet-metal casing A and a rotary screen B, mounted on.

a shaft 0, turning in hearings in the ends of the casing A, and provided on its front end with a crank O, by which to turn it. The casing is made with a semi-cylindrical or arched trunk or. screen-chamber a, a hopper b on its front end, a flanged bottom 0, adapted to set over a barrel or other ash-receptacle, and a discharge-spout d at the rear end. The hopper b has a hinged lid e. The rotary screen B is an open-ended cylinder or polygon, preferably an octagon, as shown in Fig. 4, made of strong wire-gauze of suitable mesh, stretched over two rings f f at opposite ends, which are supported by means of spokes f on the shaft 0. The shaft is mounted at a slight inclination, so that the screen shall slope s'ufficiently .to cause coals entered at its higher end todescend as it is revolved toward itslower end.- The coals, cinders, or ashes to be screened are placed in the hopper b,from which,by reason of the'inclined bottom thereof, they slide down through an opening g above the shaft 0 into the open upper end of the screen B. lhe cover 6 being closed, the crank O is turned, thereby rolling the mass around within the screen and causing the ashes and dust to fall out through the screen and through the bottom opening it into the ashlbarrel or receptacle beneath, while the coals or cinders travel down the inclined sides of the screen and fall out through an outlet or spout din-to a coal scuttle or receptacle. At the discharge end two inclined chutes or deflecting-plates I 11 v are provided, arranged to direct to the outlet 01 any coals or cinders that may fall on them. The hopper b terminates entirely above the axis of the shaft C, and has itsbot- .tom plate j inclined at such an angle as to make room below it for the inolined portion C of the crank, so that;the latter may rotate freely beneath the hopper,while its extreme outer end need project no farther forward from the trunk of the casing than the projection of the upper front side of the hopper, while yet leaving the crank-portion O. of sufficient length to form a suitable handle. By

this construction the sifter is made. very comafter which the casing is dipped in a galvanizing-bath, which serves to solder all the joints as'well as to'give a galvanized. coating Lto the metal.

' Fig. 6 shows the. blank Z from which the arched trunk a is formed. The metal cut to' this shape is bent to the form shownin cross- ,sect-ion in Figs. 3 and 4., its projecting end ortion Z being turned outwardly to form a P IOO flaring flange extending around the crown and the portions Z being turned outwardly ing bottonrij of the hopper, while the portionv beneath (lettered 3' forms the front of the body portiona and the lower section 7T ex:

, tends beneath the lower front end of the body or trunk. The portions j and 7' have flanges 7' and 7' which are united by seaming in the usual manner to corresponding flanges Z Z", formed on the blank Z, the sea-ms formed by the union of the flanges 7' Z being clearly shown in horizontal cross-section in Fig. 15. The blank it forms the, rear and both sides of the hopper I), being divided by three vertical bends into" a rear section 17. and two wings'or side sections 07. The section n forms the back of the hopper, as shown at n in Figs. 2 and 4, while the wings n form the sides of-the hopper. These wings are formed with flanges n a which are seamed to corresponding flanges f, formed on the sections jj' of the blank j. The top flanges 7' and n are bent around a wire to form a finish for the mouth of the hopper. The hopper is firmly secured to the front end of the trunk a by rivetingits back wall n to the flange m, applied to" the front end of the arched portion of the trunk in the manner already described. To'furtherstiffen this connection the brace Z0 is applied and riveted to the top of the trunk and the upper part of the rear wall of the hopper.

The rear end of the trunk a is formed of a blank 13, (shown in Fig. 7,) and which is bent transversely at right angles, forming it into two sections 19 and phfof which the forvrner closes the rear end of the trunk and the latter closes the under side of its overhanging portion. This blank 19 is formed with flanges p and 19 which are seamed to flanges 'Z and Z on the rear end and rear under side of the blank Z. The section 19 is cut in the manner indicated in Fig. '7 to form the flaps p and 11 which are turned downwardly at right angles to section f, so that the flap 19 forms an uninterrupted downward continuation of the rear end wall 29, as shown in Fig. 2. These flaps thus constitute the two opposite sides of the delivery-spout cZ.

Two inclined slides "Z '2' are cut from blanks of the shape shown in Fig. 10, having lateral fl-anges,-'which are bent at right angles to stiffen them, as shown in the. cross-section marked i in Fig. 10. They also have ,end projections i which extend down through the bottom opening in the section p in the manner shown in Fig. 3, to constitute theopposite ends of the spout cZ. These downward projections might be formed with flanges and scanned to the projections 19 19, or the parts will be sufliciently connected by wiring the bottom edges, as shown.

The bottom 0 is constructed of the blank shown in Fig. 9, which is cut out of circular form, with a hole or opening 77. formed in its .center, having flanges c projecting into it.

The outer portion 0 is preferably integral with the blank 0 and is turned down and preferably has its edge wired. The flanges o c are turned up perpendicularly, and when the bottom is applied to the trunk a these flanges project up within the trunk, as shown best in Fig. 4, and are riveted thereto. The flanges Z are turned outwardly from the trunk and rest on the top of the bottom a, as

shown in Fig. 4, whereby a firm seat is formed.

lhe bottom portions 3' and 19 also rest on the bottom. 0, and arefurther attach edtheret-o by flanges j and 19 which projiecfibeyond the opening in c and arebentdown to engage the end portions of the-openingth at is,theper; tion's beyond the flanges c, as best shown in Figs. 2-and 5. The connections formed by these several flanges are greatly strengthened by the soldering action of the galvanizingbath.

The hopper-lid e is made of theblanks-hown .in Fig. 13, having side and end flangeswhich are turned down to partly inclose the mouth of the hopper. This lid is hinged inanysuitable manner to the hopper, so that. it maybe thrown back to the position shown in Fig; 1.

The casing A, constructed as thus described,

is very light and strong and is made of few pieces, which are connected in a simple manner, involving the minimum of: labor, so that Ioo the entireconstruction is strong, compact, and

cheap.

I claim as my invention the following defined novel features, substantially as hereinbefore specified,- namel'y: p

1. In an ash-sitter, a casing comprising a trunk or screen chamber a, formed of an arched sheet-metal blank Z and sheet-metal ends, and ahopper Z2, formed of a sheet-metal 2. Inan ash-sitter, a casing comprising a trunk or screen-chamber a, formed of an arched sheet-metal blank Z, flanged at Z, and

an inward flange-piece m, seamed thereto at one end, and a hopper b, the rear wall n whereof is fastened to said flange-piecem, substantially as specified.

3. In an ash-sitter, acasing comprising a trunk or screen -chamber a, formed of an arched sheet-metal blank Z,'and a hopper b, formed with back and side sections and with a blank 3', constituting thefront and bottom sections of said hopper and the lower front end wall of said trunk, and having a portion j" bent partly beneath the trunk to form the end bottom therefor:

4. In an ash-sitter, a casing comprising a trunk or screen-chamber :1, having a hopper. b at one end and closed at its other end by a sheet-metal blank 1), which is bent horizontally beneath the end at p to form an end bottom therefor and formed with an outletopening through said bottom.

5: In an ash-sitter, a casing comprising a trunk or screen-chamber a, having a hopper b at one end and closed at its other end by a sheet-metal blank p, which is bent horizontally beneath the end at p to form an end bottom therefor, and said bottom portioncut to form flaps 19 19 bent downward and united with end sections to form a delivery-spout d, projecting downward from said bottom.

6. In an ashesifter, a casing comprising a trunk or screen-chamber at, having a hopper b at one end and closed at the other. by a metal plate 1), which isbentbeneath it at 192 to form the bottom end portion, an outlet-opening formed in this bottom portion, and deflecting cornerplates i i set in said end portion and terminating at the lower ends incommunication with said opening.

7. In an ash-sitter, a casing comprising a trunk or screen-chamber ct, having a hopper b at one end and closed at the other bya metal plate 19, which is bent beneath it at p to form the bottom 'end portion, an outlet-opening formed in said bottom portion, and deflecting corner-plates i t in said end portion, with their lower ends extending throughand prolonged downwardly beyond said opening to form the ends of a delivery-spout d, substantially as specified.

8. In an ash-si-fter, a casing comprising a trunk or screen-chamber a, consisting of an archedplate and end plates applied to its opposite ends and turned under its ends, and a bottom 0, applied beneath said trunk, having an opening it communicating with the interior thereof, and the end edges of said end plates flanged over the end portions of said opening, whereby the bottom is held firmly to the trunk, substantially as specified. 9. In an ash-sitter, a casing comprising a trunk or screen-chamber a, consisting of an arched plate and end plates applied to its opposite ends, and a bottom 0, applied beneath said trunk, having an opening h, and flanges cf, turnedmp from said opening within the sides of the trunk and riveted thereto.

10. In an ash-sitter, a casing comprising a trunk or screen-chamber a, consisting of an arched plate and end plates applied to its opposite ends and turned under its ends and seamed-to its end and bottom edges, the sides of said trunk having out-turned flanges lfl'exits bottom, and a bottom 0, applied beneath 0', turned up Within'the trunk and riveted. with the flanges Z resting on said bottom, substantially as specified.

In witness whereof I have-hereunto signed my name in the presence of two subscribing witnesses.

. BURTON I-I. COOK.

' Witnesses:

GEORGE II. FRASER, FRED WHITE.

tending between the seamed end portions of 

